MMR...jeez...whats a caring parent to do? We are starting to earn our parenting dollars now.
OPTION A: Give your wee one the triple jab? Links to Autism have been disproved...if you believe governments and doctors who all make money from the MMR being given to more and more people.
OPTION B: Go for the single but then it takes longer which means they are vulnerable for longer, costs a few hundred quid (not that I care about the cost), might be less quality due to lesser regulation and draws any side effects out over a longer period of time.
OPTION C: What about not at all? Then you risk your progeny getting one of the three illnesses and the consequent dangers they bring, ish. Or maybe it is all a fuss about nothing and letting your childs' immunity develop naturally and coping with illnesses is the best path.